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Service Sector Output and Economic Growth In Nigeria: An Autoregressive Distributive Lag and ECM Approach
Full text linkPurpose: Recent technological advancements in manufacturing have diminished employment opportunities for low-skilled workers, particularly in developing economies, resulting in slower job creation and productivity growth. In light of this challenge, many nations are seeking alternative pathways to stimulate economic expansion. This study examines the potential of Nigeria's service sector as a driver of growth, focusing on the impact of key sub-sectors, Education (EDU), Real Estate (RES), Health Services (HES), and Trade (TRD) alongside government regulation (proxied by inflation).
Method: The study uses Central Bank of Nigeria data (1981–2023) and applies econometric techniques, including the Augmented Dickey-Fuller (ADF) test, Johansen Cointegration test, and Error Correction Mechanism (ECM). These assess stationarity, long-run equilibrium, and short-term dynamics. The ADF test confirms stationarity after first differencing, while cointegration reveals five long-term equilibrium relationships.
Result: HES significantly boost short-term economic growth, while TRD has a positive but insignificant effect. RES negatively impacts growth, whereas EDU shows an insignificant negative link. To improve performance, the study recommends increased healthcare investment, sustained public administration expansion, and financial reforms to strengthen the service sector, mitigating adverse effects and promoting sustainable growth
ANALISIS PENGARUH VARIASI POSISI BATERAI DAN FORMASI PENUMPANG TERHADAP KESTABILAN DINAMIS KENDARAAN LISTRIK CEVI-C1
Full text linkAbstract—Vehicle dynamic stability is influenced by many factors, but the main influencing factor is distribution of mass within the vehicle. Previous battery position of CEVI-C1 was located in the front and rear compartments. After being reconditioned, the battery position is located in the rear compartment only. There is no prior research on the effect of changes in battery position and passenger formation on the dynamic stability of CEVI-C1. Therefore, a dynamic stability analysis of CEVI-C1 is needed. The dynamic stability of CEVI-C1 is assessed through the vehicle's directional behavior when cornering. This behavior can be determined through several analyzes, which is slip, skid, and roll analysis. The results of the analysis show that CEVI-C1 tends to understeer in all variations. The results of CEVI-C1 skid analysis show that the average maximum vehicle speed in all variations of battery position and passenger formation has a value of 52 km/h. In the roll analysis, the battery position in the middle and front compartments has a maximum speed value of 72 km/h, while the battery position in the rear compartment has a value of 55 km/h. This difference is due to different vertical position of the vehicle's center of mass (CG). From the results of slip, skid, and roll analysis, it can be concluded that the battery position in the front compartment of CEVI-C1 has a better dynamic stability value than other compartments.
Keywords: battery position, electric vehicle, passenger formation, roll, skid
Abstrak—Kestabilan dinamis sebuah kendaraan dipengaruhi oleh banyak hal, namun pengaruh utama kestabilan ini adalah distribusi massa dalam kendaraan. Posisi Baterai CEVI-C1 sebelumnya terletak pada kompartemen depan dan belakang. Setelah direkondisi, posisi baterai terletak pada kompartemen belakang saja. Belum ada penelitian yang meneliti tentang pengaruh perubahan posisi baterai dan formasi penumpang terhadap kestabilan dinamis CEVI-C1. Oleh karena itu diperlukan analisis kestabilan dinamis pada CEVI-C1. Analisis kestabilan dinamis CEVI-C1 dinilai melalui perilaku arah kendaraan ketika berbelok. Perilaku ini dapat diketahui melalui beberapa analisis, yaitu analisis slip, skid, dan roll. Hasil analisis menunjukkan bahwa CEVI-C1 cenderung berperilaku understeer pada semua variasi. Hasil analisis skid CEVI-C1 menunjukkan bahwa rata-rata kecepatan maksimum kendaraan dalam semua variasi posisi baterai dan formasi penumpang memiliki nilai 52km/jam. Pada analisis roll, posisi baterai pada kompartemen tengah dan depan memiliki nilai kecepatan maksimum 72 km/jam, sedangkan posisi baterai pada kompartemen belakang memiliki nilai 55km/jam. Perbedaan nilai ini diakibatkan posisi vertikal pusat massa kendaraan (CG) yang berbeda. Dari hasil analisis slip, skid, dan roll, dapat disimpulkan bahwa posisi baterai pada kompartemen depan CEVI-C1 memiliki nilai kestabilan dinamis yang lebih baik daripada kompartemen lainnya.
Kata Kunci: formasi penumpang, mobil listrik, posisi baterai, roll, ski
Memperluas Penelitian Psikologi: Dari Masyarakat WEIRD Menuju Inklusivitas Global
Full text linkThe dominance of WEIRD (Western, Educated, Industrialized, Rich, and Democratic) countries in global psychology research limits the diversity of perspectives. This affects the indexing and global exposure of psychology research from countries outside these categories, one of which is Indonesia. ANIMA Indonesian Psychological Journal, as one of the Indonesian psychology journals committed to international standards, has taken a number of steps to increase global access to Indonesian psychology, with the ultimate goal of realizing a more inclusive psychology. These steps are explained in more detail in this editorial article.Dominasi negara WEIRD (Western, Educated, Industrialized, Rich, and Democratic) dalam penelitian psikologi global membatasi keberagaman perspektif. Hal ini berpengaruh indeksasi dan eksposur global penelitian psikologi dari negara di luar kategori tersebut, salah satunya Indonesia. ANIMA Indonesian Psychological Journal, sebagai salah satu jurnal psikologi Indonesia dengan komitmen terhadap standar internasional, telah bergerak dengan sejumlah langkah untuk meningkatkan akses global terhadap psikologi Indonesia, dengan tujuan akhir mewujudkan psikologi yang lebih inklusif. Pergerakan tersebut dijelaskan secara lebih detail dalam artikel editorial ini
FORMULASI DAN PENETAPAN KADAR NANOPARTIKEL KUERSETIN PRE DAN PASCA PROSES FREEZE DRYING DENGAN KRIOPROTEKTAN MALTODEKSTRIN-GLISERIN
Full text linkAbstrak—Pada penelitian ini dilakukan formulasi freeze drying nanopartikel kuersetin dengan Krioprotektan untuk menjaga stabilitas obat dan menggunakan HPLC untuk membandingkan kadar kuersetin blank dengan kadar kuersetin setelah freeze drying menggunakan cyroprotectan. Formula terpilih ditentukan berdasarkan sifat fisik (detailkan ukuran partikel, kandungan lembab, morfologi permukaan dengan SEM, bobot jenis, dll), dan kestabilan fisika-kimia yang paling optimal. Keberhasilan dalam meningkatkan karakteristik fisikokimia diduga menunjukkan peningkatan bioavailabilitas dan aktivitas senyawa gabungan untuk studi lebih lanjut. Penelitian ini dilakukan dengan tujuan untuk menentukan apakah formulasi nanokristal kuersetin dapat mempengaruhi ukuran partikel pada sampel dan untuk mengetahui apakah Formulasi nanokristal kuersetin dengan maltodektrin dan gliserin dapat menjaga kestabilitasan kimia sediaan. Hasil analisis menunjukkan kadar kuersetin pada sampel formulasi 1 yaitu 66,44% dengan bobot awal 103,5 mg bertambah menjadi 106,8 mg setelah freeze drying. Pada sampel formulasi 2 diperoleh kadar 95%, namun bobot kuersetin tetap berbobot 101,05 mg. Pada sampel formulasi 3 diperoleh kadar 78,83%, dengan bobot kuersetin yang bertambah dari 99,8 mg menjadi 110,5 mg. Artinya, replikasi formulasi nanopartikel kuersetin dengan gliserin mengandung kuersetin yang lebih besar dibandingkan dengan maltodektrin atau gabungan keduanya. Kedua senyawa yang digunakan dapat mempertahankan stabilitas kimia kuersetin yang diformulasi.
Kata kunci: formulasi, nano partikel, kuersetin, freeze drying, krioprotektan, maltodekstrin, gliseri
Hubungan Antara Lingkungan Belajar yang Mendukung Kebutuhan dan Perilaku Sabotase Diri Akademik pada Siswa Form Two di Meru County, Kenya
No full textAcademic self-sabotaging behavior is a prevalent problem among Form Two students in Kenya, being linked to lower academic achievement, academic anxiety, academic stress, and poor mental health. Existing research has consistently linked basic psychological needs (BPN) satisfaction to less academic self-sabotaging behavior. Despite this, there is a relative dearth of studies exploring this area in the Kenyan context. Therefore, the current study examined how basic psychological needs-supportive learning environment relate to academic self-sabotaging behavior, with self-determination theory (SDT) as the theoretical basis, and a convergent parallel mixed-methods research design. The quantitative study sample comprised 400 students (215 boys; 185 girls) drawn using proportionate stratified and simple random sampling. The qualitative study sample included 20 students drawn using purposive criterion sampling. Data for quantitative study was collected using Basic Psychological Needs Satisfaction and Frustration Scale (BPNSFS; Chen et al., 2015) and Academic Self-Handicapping Scale (Midgley & Urdan, 2001). Qualitative data collection tools was a semi-structured interview schedule. Study results revealed a weak, negative and statistically significant correlation between needs-supportive learning environment and academic self-sabotaging behavior (r(396) = - .14; p < .01). Qualitative findings complemented these results, revealing that a learning environment that supported students’ needs of autonomy, competence, and relatedness promoted high level of adaptive learning behaviors. The study recommends that schools should promote an autonomy-supportive school environment that meets students’ basic psychological needs (BPN) to reduce academic self-sabotaging behavior.Perilaku sabotase diri akademik merupakan masalah yang lazim di kalangan siswa Form Two di Kenya, yang dikaitkan dengan prestasi akademik yang lebih rendah, kecemasan akademik, stres akademik, dan kesehatan mental yang buruk. Penelitian yang ada secara konsisten mengaitkan kepuasan kebutuhan psikologis dasar dengan perilaku sabotase diri akademik yang lebih sedikit. Meskipun demikian, terdapat kelangkaan relatif studi yang mengeksplorasi area ini dalam konteks Kenya. Oleh karena itu, studi ini meneliti bagaimana lingkungan belajar yang mendukung kebutuhan psikologis dasar berhubungan dengan perilaku sabotase diri akademik, dengan self-determination theory (SDT) sebagai dasar teoritis, dan desain penelitian metode campuran paralel konvergen. Sampel studi kuantitatif terdiri dari 400 siswa (215 laki-laki; 185 perempuan) yang diambil menggunakan random sampling sederhana dan stratifikasi proporsional. Sampel studi kualitatif mencakup 20 siswa yang dipilih menggunakan sampel kriteria purposif. Data untuk studi kuantitatif dikumpulkan menggunakan Basic Psychological Needs Satisfaction and Frustration Scale (BPNSFS; Chen et al., 2015) dan Academic Self-Handicapping Scale (Midgley & Urdan, 2001). Alat pengumpulan data kualitatif adalah jadwal wawancara semi-terstruktur. Hasil studi mengungkapkan korelasi yang lemah, negatif dan signifikan secara statistik antara lingkungan belajar yang mendukung kebutuhan dan perilaku sabotase diri akademik (r(396) = - 0,14; p < 0,01). Temuan kualitatif melengkapi hasil ini, mengungkapkan bahwa lingkungan belajar yang mendukung kebutuhan siswa akan otonomi, kompetensi, dan keterkaitan mendorong perilaku belajar adaptif tingkat tinggi. Studi ini merekomendasikan bahwa sekolah mempromosikan lingkungan sekolah yang mendukung otonomi yang memenuhi kebutuhan psikologis dasar siswa untuk mengurangi perilaku sabotase diri akademik
PERAN KOMUNIKASI INTERNAL TERHADAP EFEKTIVITAS KERJA DAN KINERJA KARYAWAN PADA DINAS KETAHANAN PANGAN PROVINSI JAMBI
Full text linkThis research aims to explore the role of internal communication on work effectiveness and employee performance at the Jambi Province Food Security Service. Internal communication is a key factor in increasing organizational efficiency and productivity, especially in the government context. The research approach used is qualitative with descriptive methods, aiming to understand the experiences, perceptions and dynamics of interactions between employees and management. Data was obtained through in-depth interviews with 3 participants consisting of structural officials and functional employees, as well as through direct observation of communication patterns in the work environment. The research results show that effective internal communication characterized by openness of information, active participation of all parties, and transparent two-way communication contributes significantly to increasing work effectiveness and employee performance. Employees who feel they have received sufficient information and are involved in decision making are more motivated and show better performance
ANALISIS PRICE DISCOVERY SAHAM ALIBABA DI NYSE DAN HKEX
Full text linkThis research analyzes the price discovery process of Alibaba shares traded on two major exchanges: the New York Stock Exchange (NYSE) with the ticker BABA and the Hong Kong Exchange (HKEX) with the ticker 9988. The methods used include the Vector Error Correction Model (VECM), Hasbrouck's Information Share (IS), and Impulse Response Function (IRF) to measure the relative contribution of each exchange in reflecting new information in stock prices. The results of the analysis show that the two exchanges have a strong long-term relationship, as indicated by the Johansen cointegration test. Based on the IS calculation, HKEX has a greater contribution to price discovery compared to NYSE, indicating that Alibaba's stock price reflects new information faster on HKEX. The IRF analysis shows that price shocks on one exchange have a significant impact on the other exchange in the short term, but the effect tends to diminish in the long term. These findings provide insight for investors in choosing a more efficient exchange for transactions and open up arbitrage opportunities based on the different roles of each exchange in price discovery
Konsep Aksis Jantung dan Saluran Cerna: Hubungan Gangguan Keseimbangan Mikrobiota Saluran Cerna dan Gagal Jantung
Full text linkDiperkirakan sekitar 64,3 juta pasien di dunia mengalami penyakit gagal jantung. Di negara berkembang, diperkirakan prevalensi orang yang diketahui menderita gagal jantung sebesar 1-2% dari populasi orang dewasa. Sampai saat ini sudah banyak penelitian yang membahas tentang tatalaksana gagal jantung sejak bertahun-tahun yang lalu. Namun prognosis penderita gagal jantung masih terbilang kurang baik dan Quality of Life (QoL) mereka menurun. Studi studi beberapa dekade terakhir menunjukan bahwa keseimbangan mikrobiota di saluran pencernaan turut serta dalam patogenesis dari aterosklerosis, penyakit jantung koroner, dan gagal jantung. Penulisan ini bertujuan untuk memberikan gambaran hubungan antara gagal jantung dengan keseimbangan mikrobiota saluran cerna serta tatalaksana yang dapat diberikan sebagai alternatif yang dapat memberikan hasil optimal terhadap pasien
Ketepatan Reasoning/Judgement dan Rekomendasi Mahasiswa Farmasi pada Kasus Vignette Swamedikasi Dispepsia
Full text linkAbstract—The public frequently comes to community pharmacies for self-medication to address mild symptoms, including dyspepsia. Pharmacy students need to develop appropriate clinical decision-making abilities to provide quality self-medication services as they prepare for their future roles as pharmacists. This study aims to describe the appropriateness of clinical reasoning/judgement and recommendations by pharmacy students in response to a vignette case of NSAID-induced dyspepsia. Data was collected through Google Form questionnaires, with third-year pharmacy students who currently took a course related to self-medication as participants. Descriptive statistics and inductive content analysis were used to analyze the data. The appropriateness of reasoning/judgement and recommendations was determined based on conformity with the literature and/or expert panel consensus. The total population was 162 students and of these 150 participated. Of the 150 participants, 78% provided appropriate reasoning/judgement and recommendations to the NSAID-induced dyspepsia case. This showed that most pharmacy students at this university demonstrated correct clinical reasoning/judgment, and could provide appropriate recommendations for a case of NSAID-induced dyspepsia. This might imply that the changes in the Indonesian pharmacy curriculum, incorporating more clinical skills, have started showing positive effects.
Keywords: self-medication, dyspepsia, reasoning/judgement, recommendations, pharmacy students
Abstrak—Masyarakat sering datang ke apotek untuk melakukan swamedikasi dalam mengatasi gejala ringan, termasuk untuk mengatasi keluhan dispepsia. Mahasiswa farmasi, sebagai calon apoteker di masa depan, perlu mempunyai kemampuan clinical decision making yang mumpuni untuk dapat memberikan layanan swamedikasi yang berkualitas. Penelitian ini bertujuan untuk mendeskripsikan ketepatan clinical reasoning/judgement dan rekomendasi yang diberikan oleh mahasiswa S1 farmasi dalam menanggapi kasus swamedikasi dispepsia akibat penggunaan AINS (Anti Inflamasi Non Steroid). Pengumpulan data dilakukan melalui kuesioner Google Forms, dengan melibatkan partisipan mahasiswa farmasi tahun ketiga yang saat ini sedang mengikuti mata kuliah terkait swamedikasi. Analisis dilakukan menggunakan statistik deskriptif dan inductive content analysis. Ketepatan reasoning/judgement serta ketepatan rekomendasi ditentukan berdasarkan kesesuaian dengan literatur dan/atau konsensus expert panel. Dari total populasi 162 mahasiswa, 150 mahasiswa berpartisipasi pada penelitian ini. Dari 150 partisipan ini, 78% dapat memberikan clinical reasoning/judgement dan rekomendasi dengan tepat pada kasus ini. Hal ini menunjukkan mayoritas mahasiswa S1 farmasi pada universitas ini telah mempunyai kemampuan yang baik dalam clinical reasoning/judgement dan pemberian rekomendasi pada kasus swamedikasi dispepsia karena penggunaan AINS. Hal ini mungkin menandakan bahwa perubahan dalam kurikulum farmasi di Indonesia yang saat ini lebih banyak memasukkan clinical skills mulai memberikan dampak positif.
Kata kunci: swamedikasi, dispepsia, reasoning/judgement, rekomendasi, mahasiswa farmas
Determinants of Poverty in East Java: Education, Unemployment, and Minimum Wage
Full text linkThis study aims to analyze the effect of average school years, open unemployment rate, and minimum wage on the number of poor people in East Java Province from 2014-2023. The research method used is quantitative with a descriptive approach, using panel data regression covering 38 districts/cities. The data analyzed were sourced from the East Java Badan Pusat Statistik (BPS), including the number of poor people, average school years, open unemployment rate, and minimum wage. The analysis shows that average years of schooling have a significant negative effect on poverty. Although the minimum wage hurts poverty, the effect is minimal. These findings emphasize the importance of improving education and reducing unemployment as the main strategies for poverty alleviation in East Java